How to fix the WiFi hotspot in Android in the Kyivstar network

I’ve discovered that mobile hotspot stopped working right after
Kyivstar introduced 4G. Android does offer a WiFi access
point, the laptop does connect to it, but no external site can be accessed from
the laptop. It turned out that there was the bug in the
instructions. When a
new APN is created, the type should be default,dun. The reference:
Quora.